South Africa vs Tanzania: Number of one-year-olds who are not vaccinated against diphtheria

South Africa
37.97 % change on previous year
in 2023
Tanzania
33.4 % change on previous year
in 2023
South Africa rank
26th
Tanzania rank
29th

Number of one-year-olds who are not vaccinated against diphtheria over time

  • South Africa
  • Tanzania
-50050100198120022023

How they compare

South Africa currently reports 37.97 % change on previous year against 33.4 % change on previous year in Tanzania, a difference of 4.57 % change on previous year.

That makes South Africa's figure about 1.1 times Tanzania's.

The two have swapped places 16 times across 40 shared years of data; in 1984 it was South Africa ahead.

South Africa ranks 26th and Tanzania ranks 29th of 194 countries.

Across the 5 decades both report, South Africa averaged higher in 1 and Tanzania in 4.

Head to head by decade

Decade South Africa Tanzania Difference Ahead
1980s 4.27 % change on previous year -6.36 % change on previous year 10.62 % change on previous year South Africa
1990s -0.804 % change on previous year 3.54 % change on previous year 4.35 % change on previous year Tanzania
2000s -1.14 % change on previous year 6.75 % change on previous year 7.9 % change on previous year Tanzania
2010s -1.1 % change on previous year 7.47 % change on previous year 8.57 % change on previous year Tanzania
2020s 11.98 % change on previous year 22.23 % change on previous year 10.24 % change on previous year Tanzania

Averages of every year both report within each decade.

Frequently asked questions

Which has higher number of one-year-olds who are not vaccinated against diphtheria, South Africa or Tanzania?
South Africa, at 37.97 % change on previous year against 33.4 % change on previous year in Tanzania as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between South Africa and Tanzania?
4.57 % change on previous year, with South Africa ahead.
How many years of comparable data are there for South Africa and Tanzania?
40 years are reported by both, from 1984 to 2023.
How do South Africa and Tanzania rank globally for number of one-year-olds who are not vaccinated against diphtheria?
South Africa ranks 26th and Tanzania ranks 29th of 194 countries.
Where does this data come from?
Statizoid (derived), published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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South Africa vs Tanzania: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 18 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-4/south-africa/tanzania/

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<a href="https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-4/south-africa/tanzania/">South Africa vs Tanzania: Number of one-year-olds who are not vaccinated against diphtheria</a> — Statizoid

About this data

Indicator
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
194 places, 7,686 data points, 1981–2023
Last refreshed

The year-on-year percentage change in Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.